Flexible pipe connection.



w. A. DODGE. FLEXIBLE PIPE CONNECTION.

APPLICATION FILED APR. 30. 1914.

S H [ET 1.

an uemto'c Putvnted May 4, 1915.

2 SHEETS- Wilt mamas afawmw W. A. DODGE.

FLEXIBLE PIPE CONNECTION.

APPLICATION FILED APR. 30. 1914 1 138 2810 Patented May 4, 1915.

2 SHEETSSHEET 2.

I 9 "r I I r iii??? 6'57 J2 WILLARD A. DODGE, OF HORNELL, NEW YORK.

FLEXIBLE PIPE CONNECTION.

meager.

Specification of Letters Patent.

Patented May 4, 19l5.

Application filed April 30, 1914. Serial No. 835A90.

T all who: it may concern:

Be it known that I, WILLARD A. Donor a citizen of the United States,anda residentof Hornell, in the county of Steuben and State of New York,have invented certain new and useful Improvements in Flexible PipeConnections, of which the following is a specification.

This invention relates to improvements in flexible pipe connections ofthat character in which there are two'or more metal sections connectedtogether by a piece of hose of vulcanized rubber or other suitablematerial.

The ohject of the present invention is to so-connect the metal memberswith the hose member that the hose will be both compressed and confined.In other words, in the preferable embodiment of my invention, the hoseis of'a longer length than the distance between the metal sections sothat when the metal sections are secured together the hose will beshortened in length, thereby compressing the same.

The invention consists in the construction and arrangement hereinaftermore particularly described and then definitely claimed.

In the drawings accompanying and forming part hereof: Figure 1 is a sideelevation of a pipe connection made in accordance with my invention.Fig. 2' is a Sectional view of one end of the connection. Fig. 3 is asectional view of the other end of the connection. Fig. 4 is a sectionthrough the universal joint shown in Fig. '3. Fig. 5 is a sectionaldetail, slightly se arated, to show the action of the hose. E ig. 6 is asimilar view of the other end of the coupling.

Referring now to the details of the drawings by numerals: l and 2designate the pipe connections to be connected by the flexible pipeconnection. As indicated in Fig. 2, the member 1 has an enlarged screwthreaded end 4 which screws into a socket member 6 loosely connected tothe end. of a pipe section 8. The other end of this pipe section 8 hasan enlarged socket member 10 which screws onto one section 12 of auniversal joint, this section 12 being loosely .inafter explained.

the third section 16 and 18 of the universal joint. The member 18 isscrew threaded as indicated at 20 and screws into a ring nut 22 whichforms a connection for a member 24 screwed onto the pipe connection 2. Ihave thus referred generally to the parts as appear from the exterior inFig. 1 and will now refer to the details of the various parts.

The pipe section 1 which has been described as having an enlarged screwthreaded end 4- has an enlarged opening 5 therein which is designed toreceive one end of a piece of hose 26 of vulcanized rubher or othersuitable material. This hose 26 has its bore of the same size as thesmaller opening in the pipe connection 1 and on the exterior is made oftwo diameters, the larger section fitting the bore 5 of the pipeconnection 1, while the section 28 extending out of pipe connection 1 isof smaller diameter on the exterior. This smaller end 28 is adapted tobe inserted within the pipe section 8. The latter is provided with a pinor stop 30 against which abuts a collar 32 preferably made of lead orother soft metal and it may be easily slipped in position within thepipe section 8 before the hose is placed therein. The

collar 32 has one end beveled on its exterior,

as indicated in Fig. 2, while the interior of the hosesection 28 issimilarly beveled on the interior so that the end of the hose sectionmay be wedged between the bevel of the collar 32 and the interior wallof the pipe section 8. That part of the hose section 28 which normallyextends out of the pipe section 1 and which fits within the pipe section8 is of greater length than the space within said pipe between thecollar 32 and the end of the pipe. Therefore, when, the hose section 28is inserted in the pipe section 8, there will be a space left betweenthe shoulder 32 of the enlarged part. 26 of the hose section and theendof the pipe section 8. Therefore, as the parts are screwed home. it ispossible for the hose section 28 to be shortened in length as will behere- Between the aforesaid shoulder 34 and the end of the pipe section8 is located a ring 36 preferably formed of brass. or softer metal ifpreferred, the inner surfaces of which are slightly rounded as indicatedin Fig. 5. The pipe section 8 has one member 38 of a ball and socketjoint secured to it. This member 38 may be secured to the pipe section 8as indicated in Fig. 2, or it may be formed integrall therewith, asindicated'at il in Fig. 5. no side of this member 38 is formedspherically so that it may be seated within the socket memher 6 asclearly seen in Figs. 2 and 4. This socket member 6 has an enlargedopening in one end through which the pipe section 8 may have motion asthe spherical member 38 turns within the socket member as occasion mayrequire.

After the parts are placed in the position shown in Fig. 5, the socketmember 6 is screwed onto the enlarged end of the pipe connection 1. Whenthe part 6 is screwed home, the space between the shoulder 34 and theencLof the pipe section 8 will have disappeared. In fact, the two partsare arranged to be screwed together to such an extent that the hosesection 28 will be materially compressed between the part 8 and theabutment formed by the shoulder 42 within the pipe section 1. Hence thehose section 28 is materially reduced in length, whereby it is heldunder compression endwise. It will also be manifest that it is confinedlaterally within the pipe section'8. The construction is such that nomatter how often or how much the spherical member 38 v is turned withinthe socket member 6, the

hose connection 28 is always under tension. For mstance, 1f the partsare moved aslndi" cated in Fig. 2, that art of the hose connection shownin the right hand side of said figure will be compressed slightly morethan it would be if the coupling were in a straight line, while the lefthand side is somewhat open. Nevertheless, the hose section 28 has beenso compressed within the pipe section 8 that even at the left hand sidewhere the pipe section 8 has moved awa from the enlarged end 4 of thepipe section 1, the hose section is still under compression. I deem thisan important feature of my invention for the hose is never stretched atthe point of strain. The ring 36 before referred to is for the purposeof artially filling the space between the shoul er of the enlarged hosesection 26 and the end of the pipe section 8 and also for the furtherpurpose of restraining the rubber hose section at this point andpreventing it from bursting. The other end of the section, that havingthe universal joint, is formed on the same principle, i. e.,

the rubber hose section therein contained is also longer than the spacein which it fits so that the hose section is always under compression.Referring to this universal joint of the connection,the enlarged socketend 10 is arranged to receive an enlarged end 44 meager of a hosesection, the other part 46 of which is formed of smaller externaldiameter and is provided with an annular flange 48. The sockc't member10 is arranged to have screwed into it one section 12 of the universaljoint, this section being pivotally connected to the second section 1dof the universal joint by means of the pivots 50 shown in Fig. 6. Thesecond member 14 of the universal joint is connected by means of.

that when the socket member 10 is screwed onto the member 12, the rubberhose section is thereby shortened to the extent that the socket memberis screwed onto the member 12. Inasmuch as the member 46 of the hosesection is the part most easily compressed, it follows that this part iscompressed until the surplus space is entirely taken up. However, a ring64 is located around the reduced.

part 46 of the hose section for the same purpose that the ring 36hereinbefore referred to is employed. When the parts are screwed home,the space illustrated in Fig. 6 between the enlarged end of the hose 44and the ring (it is entirely closed so that the hosesection 46 isconsiderably compressed. At the same time, it will be noticed that thecompressed part of the hose 46 is likewise held confined laterally bymeans of the section 16 project ing from the member 18 of the universaljoint.

It follows from the construction described and illustrated that wheneither member of the universal joint is moved, the hose section 46 ofsmaller diameter will accommodate the desired movement. The parts areshown in Fig. 3 as having been moved. Thus it is seen that the upperside of the hose section is still further compressed, while the undersection is drawn out so that the space surrounded by the ring 64 isgreatly increased. However, it is not increased sufficiently to relievethe hose section from compression but even when moved to the extremeextent shown in Fig. 3, there is no stretching of the parts of the hosesection. Of course there would be a stretching at this point were it notfor the fact that the hose section is so' much decreased in length bybeing shortened as it is compressed into position. It will be evidentthat the ring 64 serves the same functions as the ring ,36 hereinbeforereferred to, that is to say, the ring partiolly the space caused bytheopening up of joint and at the some nc forms a circling bond of metal tocon. so the hose and thereby prevent any tendency to burst.

it is obvious that changes may be made in the form and construction oi?my invention without departing from the essential features, thepzitentable points of which are set forth by the appended claims. As oneexample, i might refer to the fact that l hove on v described thesmaller port of the hose sec n es being compressed but it will domonifest that the port of larger diameter may also be longer than theopening into which it ts so that both ports of the hose section i becompressed. (if course the port oi diameter will be compressed the mosteccount of its being of less thiclmess n the lerger part. Thecompression or the rubber lengthwise against the collar 32, combinedwith the internal pressure of the fluid within the hose section, andparticularly on the inside of the part of smaller diameter, will pressthe rubber against th interior of the pipe and prevent leakage ms thegreater the inte ns pressure on n greater thecornpression of the robberiwise, the tighter the ouit becomes. 7

l/Vhot I claim as my invention is:

il. in nine connection, the combination of two members positivelyconnected togethe movable freely at angle with respect each other, shose section having its ends located in said rigid members and forming"o t c ht joint between sold rigid members d ssid hose section being ofgreoter us, before insertion, than the space wi iin which it iscompressed, where, by when the connection is bent an angle the hosesection is not unduly stretched at of bend.

pe connection, the combination members positively connected together butmovable freely at on single with respect to each other, e hosesectionbetween seid rigid ports forming at tight connection and beingconfined laterally, and soid hose section being of greater length,before insertion, than the space within which it is compressed confined,whereby when the connection is bent at an angle the hose section is notunduly stretched at the point of bend. 3. in a pipe connection. tworigid parts positively connected together but movable with respect toeach other, in combination with a hose section between said rigid parts,sold hose section having two ports formed of different diameters andbeing of greater length, before insertion in the connection, then thespsce into which it is compressed.

4. inc pipe connection, two rigid parts positively connected togetherbut movable with respect to each other, in combination with s hosesection between said rigid parts, ssid hose section when in normalposition being" contined latersliy and having two ports formed ofdiiierent diameters of greater length, before insertion in theconnection, than the space into which it is compressed;

5. in or pipe connection, two rigid ports connected together by s balland socket oint, where-by one of the parts may move with respect to theother, in combination with a hose section located within said ball andsocket joint, said hose section being compressed lengthwise thereof sothat when the parts of the bell and socket joint move with respect toeach other, the hose section is not unduly stretched at the point ofbend.

6. n a pipe connection, two pipe sections, one having a spherical shapedmember thereon end'the other having a socket secured thereto co-actingwith the spherical shaped member, whereby one of said sections may movewith respect to the other, in combination with a hose section connectingthe pipe sections, and permitting the parts of the bell and socket jointto more with respect to each other, said hose section being compressedlengthwise thercoi so that when the ports of ball and socket joint movewith set to each other, the how section is not unduly stretched at thepoint of bend.

'l. in a pipe connection, two pipe sections, one having a sphericalshaped member thereon and the other having a. socket co-acting with thespherical shaped member, wl'iereby one of said pipe sections may morewith re spect to the other, in combination with it hose sectionconnecting the pipe sections, said hose section having two parts formedof diderent diameters one of said parts being confined in one pipesection and the part of smaller diameter being; conlincd in the otherpipe section, the pipe section inclosing the part of smaller diameterabutting against the shoulder formed by the part of larger diameter, andsaid hose section being or" greater length before insertion in theconnection than the space into which it is compressed, whereby one ofsaid pipe sections may move with respect to the other without stretchingthe hose section.

8. in a pipe connection, two pipe sections, one having n sphericalshaped member thereon and the other having a socket co-octing with thespherical shaped member, one of said pipe sections having an opening oflarger diameter than the other and the one or smaller diameter having atapered ring therein, in combination with a hose section connecting thepipe sections, said hose section having two parts formed of 'diil'erentdiameters, the part of larger diameter being confined in the pipesection having the larger diameter and the port of smaller di said pipesectr. is having on open of lerger diameter siren the other and the oneof smziiler diameter having it topereri therein, in combination with ehose connecting the pipe sections, said hose sec-- tion having two portsforrneci of difie diameters, the part of ierger diameter hei coniinetiin the pipe section having too larger climneter and the part of smaller(if :imeter being coniinerl in the section having the tapered ring, andseicl section chatting against said toner-ed. ring and being greaterlength ore insertion in the con ncction than the space into which it iscore.- presserl', whereby one of said pipe sections mey move withrespect to the other Without stretching the hose section, enci 2r ringlo carted between enri of the pipe section oi? smaller oliorncter andthe shoulder formed by the hose section of larger diameter,

10. in e pipe connection, two pipe sections connected to each other, oneof said sections having on opening of lerger diameter than the other, incombination with a hose section connecting said pipe sections together,seiri hose section having one port 01 larger eseineter than the otherforming at shoulder til the junction of the two ports, and. e r located;between said shoulder and the end of the other nine section.

11. in e pipe connection, two pipe sect ons connected to eoch other, oneof said sections having; on opening of larger diameter then the other,in corn inetion with e hose tion connecting seid pipe sections together,said hose section having one port or inrger diameter than the otherforming s shonioier at the junction oi the two ports, enol e locatedbetween said shoumer end the free end of the other pipe section, enisnioi hose section being or greater length, hefore insertion in theconnection, than the space into which it is compressed.

l2. lln a pipe connection, two pipe sections connected together, onehaving on opening therein of larger diameter than the other providedwith n shoulder at its rear end,

and the other pipe section having an cloutment as the ring 32 in itsinterior, in cornbination with a hose section connecting ipe sectionstogether, said hose section hoving one port of larger iiiernetcr thenthe other, the of lirger diameter into the pipe section having theshoulder therein onri port of smaller Criomcter fitting into the pipesection having 1c abutment therein, end scici hose sectio: being; or?greater length, before insertion, on n the dist'zince between seirishoulder e i inent whereby the hose section is compressed when inposition end permits one pipe tion to more With respect to 4.1 cub otherWithont stretching the hose section.

13. in s device of the character r escrihei,

o connection comprising flexible joint o he secured to 21 car, llseconci liezrh iccoteri substantially right onn metnilic pipeconel-cihie ioints, the mg movement il tiirecexiole i two c e seconcnerinitin lee tions 5:; ting; more hose M. c (ievice o? a pipe co ectionc i adopted to be secure to e cor, lole joint located snhstsntinll gleeto io necting seiii tiexih Tole joint oerniittiriirections anti theseconci enri a. hose section flexible ioints, esch oi "l l n e 7 SiElCi11033 5:33 @ilg 533- ing of length,

n, SitiCi nose zclieii when the spece they occupy, whereby section wiiinot he iincisiy seiol rieinhie joints bent.

to. a device of too chore pipe connection co origin, c

t iocct hell o nectingg econd jo tting noreni '(i seconcl joint L inieest two oliroct section insicie of each of stain restreinezi lcteroilyu h thereoi, thereby no ction and 'perrnittin merit of the joints,

1". re o, clerics oi the character oiescriheti, e pipe connectioncomprising" e hoii end socket joint eciepteri to he seen ed to e cor, esecond joint locntefi suhstentiwily right angles to soicl hell encisocket ioint, a motellic pipe connecting seicl hell onoi socket jointend snicl second oint, the hell enol socket joint permitting treemovement in oli riireo tione one seiol second} joint permittingmovesocket mews:

ment in at least, two directions, and a hose In testimony whereof Iaflix my signature secionnside 3f seid belll1 arfrd s gciirlet' joint inpresence of two witnesses.

an sal secon omt, eac 0 sm ose sections being of {greater length, beforeinserv WILLARD DODGE tion, than the space the occupy, whereby Witnesses:

said hose sections wil not be unduly Rosnn'r A. PLAIBTED,

stretched at the points of bending; F. S. WOODBURY.

